Skip to content

Featured Popular Top Rated Upcoming Now Playing

Featured Popular Top Rated Airing Today On The Air

Action Adventure Animation Comedy Crime Documentary Drama Family Fantasy History Horror Music Mystery Romance Science Fiction TV Movie Thriller War

Search movies and TV series

Search movies and TV series

Featured Popular Top Rated Upcoming Now Playing

Featured Popular Top Rated Airing Today On The Air

Action Adventure Animation Comedy Crime Documentary Drama Family Fantasy History Horror Music Mystery Romance Science Fiction TV Movie Thriller War

Every movie and series, one place to find it.

Search movies and TV series

Loading content…

Discover where to watch movies and TV series online. Browse trending titles, streaming availability, ratings, trailers, cast and full episode guides — all in one place.

Movies

Featured
Popular
Top Rated
Upcoming
Now Playing

TV Series

Featured
Popular
Top Rated
Airing Today
On The Air

Discover

Trending
Free to Watch
Browse Genres
Search

© 2026 Watch Free Online Movies. All rights reserved.

This product uses the TMDB API but is not endorsed or certified by TMDB. Watch Free Online Movies does not host or stream any media — it links to where titles are legally available.

Loading title details…

Promise to the Unknown One poster

Promise to the Unknown One(1942)

October 2, 19421h 30m

80%User score 80 percent

User Score

1 votes

Overview

A young woman is in love with a young writer, winner of the Prix Goncourt. Married to a banker, she must face her husband's anger and the blackmail of a former suitor.

Director: André Berthomieu
Writers: Marc-Gilbert Sauvajon, André Berthomieu, Françoise Giroud

Top Billed Cast

Charles Vanel
Bernard Parker
Claude Dauphin
Jean Cartier
Madeleine Robinson
Françoise Parker
Henri Guisol
Duvernier

More Like This

Recommendations based on this film

61%User score 61 percent

What's Love Got to Do with It?

2023 · Romance · Comedy

64%User score 64 percent

Let's Make Love

1960 · Comedy · Romance

59%User score 59 percent

It Takes Two To Tango

2025 · Comedy · Romance

63%User score 63 percent

Yoh! Bestie

2026 · Romance · Comedy

61%User score 61 percent

After You

2003 · Comedy · Romance

85%User score 85 percent

¿Quieres ser mi hijo?

2023 · Comedy · Romance

65%User score 65 percent

Easy Virtue

2008 · Comedy · Romance

66%User score 66 percent

Sex Appeal

2022 · Comedy · Romance

60%User score 60 percent

Love, Weddings & Other Disasters

2020 · Romance · Comedy

63%User score 63 percent

Wedding Season

2022 · Romance · Comedy

66%User score 66 percent

Little Italy

2018 · Comedy · Romance

60%User score 60 percent

Desperados

2020 · Comedy · Romance

60%User score 60 percent

Love Is in the Air

2013 · Comedy · Romance

61%User score 61 percent

The Prince & Me 4: The Elephant Adventure

2010 · Comedy · Romance

67%User score 67 percent

Designing Woman

1957 · Comedy · Romance

60%User score 60 percent

Players

2024 · Romance · Comedy

61%User score 61 percent

Cuban Fury

2014 · Comedy · Romance

60%User score 60 percent

Bye Bye Love

1995 · Comedy · Romance

59%User score 59 percent

Good Advice

2001 · Comedy · Romance

59%User score 59 percent

The Right Kind of Wrong

2013 · Romance · Comedy

Promise to the Unknown One (1942) | Watch Free Online Movies

Marcel André

Chancellin

Charlotte Clasis

Mother Honoraz

Jacques Tarride

Jeweler

Gisèle Alcée

Young girl

Manuel Gary

Sailor of the Phocéa

Lucien Callamand

Bréchard

Robert Dalban

Commissioner Andréani

Pierre Brasseur

Lussac

Nicolas Amato

Station master (uncredited)

Gaston Séverin

Secretary of the Goncourts (uncredit)(

Alexandre Fabry

Father Honoraz

Jacques Breteuil

Announcer (uncredited)

Jean Clarens

(uncredited)

Media

Where to Watch

No streaming options are listed for US right now. Availability changes often — check back soon.

Facts

Status: Released
Original title: Promesse à l'inconnue
Original language: French